From c765eb86debdc06fe304511bc2edbb6f3e3d7813 Mon Sep 17 00:00:00 2001
From: Justin Weiss
Date: Sun, 13 Sep 2020 20:06:57 -0700
Subject: Add a threaded renderer

This change adds a gpulib implementation that accepts GPU commands and
runs them through a real gpulib implementation on a thread. Depending
on a setting, it can either force a sync every frame, or continue to
work until the next frame arrives.
---
 plugins/gpulib/gpu.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'plugins/gpulib/gpu.c')

diff --git a/plugins/gpulib/gpu.c b/plugins/gpulib/gpu.c
index 007da65..ed37b71 100644
--- a/plugins/gpulib/gpu.c
+++ b/plugins/gpulib/gpu.c
@@ -40,6 +40,8 @@ static void finish_vram_transfer(int is_read);
 
 static noinline void do_cmd_reset(void)
 {
+  renderer_sync();
+
   if (unlikely(gpu.cmd_len > 0))
     do_cmd_buffer(gpu.cmd_buffer, gpu.cmd_len);
   gpu.cmd_len = 0;
@@ -52,7 +54,6 @@ static noinline void do_cmd_reset(void)
 static noinline void do_reset(void)
 {
   unsigned int i;
-
   do_cmd_reset();
 
   memset(gpu.regs, 0, sizeof(gpu.regs));
@@ -370,6 +371,8 @@ static int do_vram_io(uint32_t *data, int count, int is_read)
   int l;
   count *= 2; // operate in 16bpp pixels
 
+  renderer_sync();
+
   if (gpu.dma.offset) {
     l = w - gpu.dma.offset;
     if (count < l)
@@ -714,12 +717,15 @@ long GPUfreeze(uint32_t type, struct GPUFreeze *freeze)
     case 1: // save
       if (gpu.cmd_len > 0)
         flush_cmd_buffer();
+
+      renderer_sync();
       memcpy(freeze->psxVRam, gpu.vram, 1024 * 512 * 2);
       memcpy(freeze->ulControl, gpu.regs, sizeof(gpu.regs));
       memcpy(freeze->ulControl + 0xe0, gpu.ex_regs, sizeof(gpu.ex_regs));
       freeze->ulStatus = gpu.status.reg;
       break;
     case 0: // load
+      renderer_sync();
       memcpy(gpu.vram, freeze->psxVRam, 1024 * 512 * 2);
       memcpy(gpu.regs, freeze->ulControl, sizeof(gpu.regs));
       memcpy(gpu.ex_regs, freeze->ulControl + 0xe0, sizeof(gpu.ex_regs));
@@ -752,6 +758,8 @@ void GPUupdateLace(void)
     return;
   }
 
+  renderer_notify_update_lace(0);
+
   if (!gpu.state.fb_dirty)
     return;
 
@@ -767,6 +775,7 @@ void GPUupdateLace(void)
   vout_update();
   gpu.state.fb_dirty = 0;
   gpu.state.blanked = 0;
+  renderer_notify_update_lace(1);
 }
 
 void GPUvBlank(int is_vblank, int lcf)
-- 
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